Source: Curium does not exist in nature. It is a synthetic element and it is produced in nuclear reactors by bombarding plutonium with neutrons. Isotopes: Curium has 15 isotopes whose half-lives are known, with mass numbers 238 to 252. Curium has no naturally occurring isotopes.
2017 Rolls-Royce Ghost Series II. Everything in life is relative, and perhaps no car illustrates this point as effectively as the Rolls-Royce Ghost. While it's technically the entry-level Rolls-Royce model, the Ghost's $250,000 base price puts it in the stratosphere of the overall automotive market.
This isn't your father's Rolls-Royce. Rolls-Royce, known as the ultimate luxury car, is tired of playing Mister Nice Rich Guy. The staid British automaker unveiled new, darker, Black Badge versions of its Ghost and Wraith cars at the Geneva Motor Show, which sport a much more sinister look.